🎴 Flashcard Mode
GK Test (Static)
Card1 / 25
Mastered0
Review0
QuestionClick to flip
What does the coloured discharge tubes for advertisement mainly contain?
AnswerClick to flip back
A
Neon
💡 Explanation:
Neon gas produces the characteristic bright red-orange glow when electrically excited, making it ideal for colorful advertisement signs. While other noble gases can be used, neon is the most common and gives these signs their name.